feat: 完成模拟交易闭环、App 与 A 股行情接入

统一单入口 Go 工程与前端依赖目录，增加后台供应商配置、候选审核、计划预算、成交冲正、持仓复盘和站内通知。接入策略版本、Python 回测、可配置 A 股公开行情及 zap 文件轮转日志，补充迁移、契约与验证。

internal/handler/market.go

@@ -0,0 +1,50 @@
+package handler
+
+import (
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+	"github.com/gin-gonic/gin"
+	"net/http"
+)
+
+func bindMarket(r *gin.Engine, o IdentityOptions) {
+	for _, audience := range []string{"admin", "app"} {
+		prefix := "/api/v1"
+		if audience == "admin" {
+			prefix = "/api/admin/v1"
+		}
+		g := r.Group(prefix, func(c *gin.Context) { authenticate(c, o, audience) })
+		g.Use(func(c *gin.Context) {
+			if o.Market == nil {
+				fail(c, apperror.ErrUnavailable)
+				return
+			}
+			c.Next()
+		})
+		g.GET("/instruments", func(c *gin.Context) {
+			v, e := o.Market.List(c.Request.Context(), currentUser(c), c.Query("q"))
+			if e != nil {
+				fail(c, e)
+				return
+			}
+			success(c, http.StatusOK, v)
+		})
+		g.GET("/market/history", func(c *gin.Context) {
+			v, e := o.Market.History(c.Request.Context(), currentUser(c), c.Query("symbol"), c.Query("exchange"), c.Query("start"), c.Query("end"))
+			if e != nil {
+				fail(c, e)
+				return
+			}
+			success(c, http.StatusOK, v)
+		})
+		if audience == "admin" {
+			g.GET("/market/syncs", func(c *gin.Context) {
+				v, e := o.Market.Tasks(c.Request.Context(), currentUser(c))
+				if e != nil {
+					fail(c, e)
+					return
+				}
+				success(c, http.StatusOK, v)
+			})
+		}
+	}
+}